From c0897dcfe2930ef2bc236bcdfcca078dec618ba2 Mon Sep 17 00:00:00 2001
From: "Diego F. Goberna" <github@feiss.be>
Date: Wed, 28 May 2025 18:59:54 +0200
Subject: [PATCH] Tweak examples for mobile (#14)

---
 examples/envmap/index.html               |  1 +
 examples/hello-world/index.html          |  1 +
 examples/interactivity/index.html        | 28 +++++++++++++---
 examples/interactivity/style.css         | 42 ++++++++++++++++++++++--
 examples/multiple-splats/index.html      |  1 +
 examples/multiple-viewpoints/index.html  |  1 +
 examples/multiple-viewpoints/style.css   |  2 +-
 examples/procedural-splats/index.html    |  3 +-
 examples/raycasting/index.html           |  1 +
 examples/vfx-dynamic-lighting/index.html |  4 ++-
 10 files changed, 75 insertions(+), 9 deletions(-)

diff --git a/examples/envmap/index.html b/examples/envmap/index.html
index a83e9af..70a93d2 100644
--- a/examples/envmap/index.html
+++ b/examples/envmap/index.html
@@ -2,6 +2,7 @@
 
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>Forge • Environment Mapping</title>
   <style>
     body {
diff --git a/examples/hello-world/index.html b/examples/hello-world/index.html
index c811ef0..8f1174e 100644
--- a/examples/hello-world/index.html
+++ b/examples/hello-world/index.html
@@ -2,6 +2,7 @@
 
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>Forge • Hello World</title>
   <style>
     body {
diff --git a/examples/interactivity/index.html b/examples/interactivity/index.html
index a10293e..f5a9f8b 100644
--- a/examples/interactivity/index.html
+++ b/examples/interactivity/index.html
@@ -2,11 +2,13 @@
 
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>Forge • Multiple Splats</title>
   <link rel="stylesheet" href="style.css">
 </head>
 
 <body>
+  <a href="#" id="mobile_button">Menu</a>
   <div id="menu">
     <div class="border">
       <div class="border">
@@ -48,6 +50,12 @@
       document.getElementById('menu_list').appendChild(el);
     });
 
+    // Setup mobile menu button
+    let IS_MOBILE = 'ontouchstart' in window || navigator.msMaxTouchPoints;
+    document.getElementById('mobile_button').addEventListener('click', () => {
+      document.getElementById('menu').classList.toggle('visible');
+    });
+
     const scene = new THREE.Scene();
     const renderer = new THREE.WebGLRenderer();
     renderer.shadowMap.enabled = true;
@@ -58,6 +66,14 @@
     const camera = new THREE.PerspectiveCamera(65, window.innerWidth / window.innerHeight, 0.1, 1000);
     camera.position.set(0, 0.9, -1.2);
 
+    // handle windows resize
+    window.addEventListener('resize', onWindowResize, false);
+    function onWindowResize() {
+      camera.aspect = window.innerWidth / window.innerHeight;
+      camera.updateProjectionMatrix();
+      renderer.setSize(window.innerWidth, window.innerHeight);
+    }
+
     // Setup mouse controls to orbit the camera around
     const controls = new OrbitControls(camera, renderer.domElement);
     controls.target.set(0.2, 0, 0);
@@ -80,7 +96,7 @@
 
     // Transition length in frames.
     // Two transitions: one for fading out the old food, another for fading in the next one
-    const TRANSITION_LENGTH = 60;
+    const TRANSITION_LENGTH = IS_MOBILE ? 30 : 60;
     // Transition timers. `null` if transition is not active
     let fadeOutTime = null;
     let fadeInTime = null;
@@ -93,9 +109,6 @@
     });
 
     async function init() {
-      // show menu
-      document.getElementById('menu').style.display = 'block';
-
       // Setup lighting
       const spotLight = new THREE.SpotLight(0xffcc88);
       spotLight.position.set(0, 1, 0);
@@ -135,6 +148,10 @@
       floor.position.set(0, -1.397, 0);
       scene.add(floor);
 
+      // Show menu
+      document.getElementById('menu').classList.add('visible');
+      if (IS_MOBILE) document.getElementById('mobile_button').classList.add('visible');
+
       // Load first food by default
       switchToFood(0);
 
@@ -208,6 +225,9 @@
 
       scene.add(nextFood);
 
+      // Hide menu if on mobile
+      if (IS_MOBILE) document.getElementById('menu').classList.remove('visible');
+
       // toggle menu item
       const menu_items = document.getElementById('menu_list').children;
       for (let i = 0; i < menu_items.length; i++) {
diff --git a/examples/interactivity/style.css b/examples/interactivity/style.css
index acde7a5..f4b07d4 100644
--- a/examples/interactivity/style.css
+++ b/examples/interactivity/style.css
@@ -3,6 +3,7 @@
 body {
   margin: 0;
   background-color: black;
+  font-family: serif;
 }
 
 h1 {
@@ -65,12 +66,12 @@ h3 {
 }
 
 #menu a.active::before {
-  content: "🙜 ";
+  content: "● ";
   font-weight: 100;
 }
 
 #menu a.active::after {
-  content: " 🙟";
+  content: " ● ";
   font-weight: 100;
 }
 
@@ -90,3 +91,40 @@ h3 {
   top: 40vh;
   left: 45vw;
 }
+
+/* mobile */
+#mobile_button {
+  text-decoration: none;
+  color: black;
+  padding: 10px 15px;
+  background-color: burlywood;
+  text-align: center;
+  font-family: serif;
+  font-style: italic;
+  font-size: 1.5rem;
+  position: absolute;
+  border-radius: 1rem;
+  margin: 1rem;
+  opacity: 0.8;
+  display: none;
+}
+
+.visible {
+  display: block !important;
+}
+
+@media (any-pointer: coarse) {
+  #menu {
+    display: none;
+    top: 4.5rem;
+    left: 0;
+    font-size: 1rem;
+    line-height: 3.2vh;
+    width: 82%;
+    margin: 0 auto;
+  }
+
+  h1 {
+    font-size: 4rem;
+  }
+}
diff --git a/examples/multiple-splats/index.html b/examples/multiple-splats/index.html
index b64128e..da126d6 100644
--- a/examples/multiple-splats/index.html
+++ b/examples/multiple-splats/index.html
@@ -2,6 +2,7 @@
 
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>Forge • Multiple Splats</title>
   <style>
     body {
diff --git a/examples/multiple-viewpoints/index.html b/examples/multiple-viewpoints/index.html
index ecedf35..b81e0a4 100644
--- a/examples/multiple-viewpoints/index.html
+++ b/examples/multiple-viewpoints/index.html
@@ -2,6 +2,7 @@
 
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>Forge • Multiple Viewpoints</title>
   <link rel="stylesheet" href="style.css">
 </head>
diff --git a/examples/multiple-viewpoints/style.css b/examples/multiple-viewpoints/style.css
index f37146d..ca6073b 100644
--- a/examples/multiple-viewpoints/style.css
+++ b/examples/multiple-viewpoints/style.css
@@ -6,7 +6,7 @@ body {
 header {
   margin: 0 auto;
   padding: 10px 0;
-  min-width: 400px;
+  min-width: 300px;
   width: 50%;
 }
 
diff --git a/examples/procedural-splats/index.html b/examples/procedural-splats/index.html
index e7c65dd..ed0c0ab 100644
--- a/examples/procedural-splats/index.html
+++ b/examples/procedural-splats/index.html
@@ -2,6 +2,7 @@
 
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>Forge • Procedural Splats</title>
   <style>
     body {
@@ -138,4 +139,4 @@
   </script>
 </body>
 
-</html>
\ No newline at end of file
+</html>
diff --git a/examples/raycasting/index.html b/examples/raycasting/index.html
index c3f7a6a..9e73a09 100644
--- a/examples/raycasting/index.html
+++ b/examples/raycasting/index.html
@@ -2,6 +2,7 @@
 
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>Forge • Raycasting</title>
   <style>
     body {
diff --git a/examples/vfx-dynamic-lighting/index.html b/examples/vfx-dynamic-lighting/index.html
index 11897ee..0bcd649 100644
--- a/examples/vfx-dynamic-lighting/index.html
+++ b/examples/vfx-dynamic-lighting/index.html
@@ -2,6 +2,7 @@
 
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>Forge • VFX Dynamic Lighting</title>
   <style>
     html,
@@ -22,7 +23,6 @@
       position: absolute;
       z-index: 10;
       margin: 1rem 2rem;
-      display: block;
     }
 
     label {
@@ -31,6 +31,8 @@
       color: white;
       cursor: pointer;
       margin-right: 2rem;
+      margin-bottom: 0.5rem;
+      display: inline-block;
     }
   </style>
 </head>